<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        div{
            display: flex;
            width: 80%;
            height:300px;
            background-color: pink;
            justify-content: space-around;
        }
        div span{
            width: 150px;
            height: 100px;
            background-color: #a534a5;
            margin-right: 5px;
            flex: 1;
        }

    </style>
</head>
<body>
  <div>
      <span>1</span>
      <span>2</span>
      <span>3</span>
  </div>
</body>
</html>